Juan Ignacio Sills
|Full name||Juan Ignacio Sills|
|Date of birth||April 5, 1987|
|Place of birth||San Antonio de Areco, Argentina|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Centre back / Full back|
|Newell's Old Boys|
|2008–2009||→ LD Alajuelense (loan)||27||(1)|
|2012||→ Instituto (loan)||21||(0)|
|2013–2014||→ U. de Chile (loan)||11||(2)|
|2016–||Newell's Old Boys||0||(0)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 03:13, 26 July 2015 (UTC).
Formed in Vélez Sársfield's youth divisions, Sills joined Costa Rican Primera División club LD Alajuelense on loan in 2008, before making any first team appearance with Vélez. He returned to his club in 2009.
For the first half of 2012, Sills played on loan for Instituto in the Primera B Nacional (Argentine second division), where he started in 21 games in his team's third-place finish. However, his team lost the promotion playoff to San Lorenzo and therefore could not achieve promotion to the Primera División. Upon his return to Vélez, he was part of the squad that won both the 2012 Inicial and 2012–13 Superfinal.
- Vélez Sársfield
- "Alajuelense de Costa Rica ficha a joven argentino Juan Ignacio Sills". Eco Diario (in Spanish). 2008-07-23. Retrieved 2010-07-09.
- "Le dieron la peor noticia". Olé (in Spanish). 2010-08-03. Retrieved 2010-08-03.